Process for converting glue.



c. M." ZIMMERMAN PROCESS FOR CONVERTING GLUE.

APPLICATION FILED NOV. 24, 1908.

I Patented June 7,1910.

l I F w'iwjjes. Y fizrazzaz w A if? Ji in il lil A A Specification of Letters lie-tent.

seems leiei Aglgilicution filed November 2e, mos. :llei'l'ol 15c. llirfigiii il.

- (rue, i cllowing is s lull, clear execs o colon,

I reduced to she form of lumps of jelgn relates fie in process for con few glue, and its obfect isle mell a! y very short period of: time, evciuusg llie long continued sppl-xceliou laces st temperusure, which detter of the glue and d1- k l q n Q me llbi'flllfi mil I e :EISQW us s-i-rerugsli. limo" so my event-ion, lue wa melted by B 1%, in s pseuetermu 4 teaser the placing t this sense a .l

- jelly llirc uglzoul} in .s, lze'ltsle sul un fied by Water wheueiu it was slowly d lved by continuous application of v j sigh, dry heel, dlssdv attendant u cer: lliis Idol; only a great deal oi lime required to melt the glue in this Way but the fiber of the glue deteriorates iroxu excessive temperature and from the continued maintenance of the glue at such 'sempereture. "Willi this old method of melting glue, it is necessary to have a. supply keltle with u qusotity of glue under constant heel. This produces e rspidend continuous deterioration of the glue in both strength and body, and in addition produces evaporation of the water in the glue, thus reducing it in quantity and greatly increasing. its cost. By my process, these objectionsble featuresore overcome, and the liq-- uid glue is produced will; an enormous seving in. time No supply kettle is necessur Y and no large quantity need be made in ad vence, as liquid glue may be produced instzmt-ly at any time, in large or small quantitles as may be reculred. The glue is sl'wsys'unilorm .GSll.

n carrying outmy invention, 1 take dry glue end $65 k it in s'predetermined quantity of cold weer until all the Water has been' slssorlied by the glue and the glue beer; The proportion of Wes-er with which the glue/is mixed depends upon circumstances, such as the xisaur'e of the glue, its strength etc. The proper proportion will cc understood by those familiar with the are I then place shis glue jelly on eisuppo rl within s chamber the support being provided with perforations or ollierwisc .cor'istrucled the; it will supperli the glue jelly "outpermit-she liquid glue to run tmough it, alley. the jelly has been melted. then pass mess over the ccldglue jelly and preferably pass the steam up through the support so to cause the steam to permeate the jelly and attack it throughout The steam iiussedlelely melts the jelly sud ceuses tlie liq glue to run down th ough the perfcrei'loius in the support. ll provide a recepsucle in s, oesition to catch the glue from a funnel leading from the performed support, this funnel be ing somewhat smaller then the reoeplacle used for cote-hing the glue, is guide the glue into it The liquid glue may be drawn from the receptacle into ,auy bucket. It .lS important in carrying outmy process that, the water of condensation from the steam be prevented from mixing Wito the liquid glue, and I, therefore, provide some means for catchin the condensed steam as it forms on the Wells of the chamber, so (lost it may be drawn oil and be prevented from mixing with the liquid glue.

To illustrate my invention ll furnish s drawing herewith,- showing an apparatus by which my, improved process may be carried out, w

The drawing represents the apparatus in vertical section.

In the drawing, A is tlie'chemloer, consistin of a cylindrical vessel, open at its upper enfi, and supported in any convenient manner on a stand A. Within the vessel A is supported as shown a removable drum B;

rovided' with a, Wide, inclined flange or unnel B at the bottom.

C is the perforated diaphragm; which" as to catch the liquid glue as is is directed liliereinco by said fuuneL A pipe l)" is seecured to the bottom oi 'thetrough to draw off the liquid glue into any suitable recepsscles A filter d of Wire gsuze is located in llie slough to strain the glue end catch all extraneous material,

I preferably provided E is a steam pipe, provided with perforations e.

- E is the steam suppl pipe, which is w1t a means (not shown) to choke the supply of steam to the pipe E, so that it may be allowed to expand in said pipe rather than be forced through it. A pipe F- secured to the bottom of the chamber A, permits the escape of the water of condensat1on.

The drum B is provided with a conical lid a, having an escape pipe a. An annular trough a" ls located about the up er edge of the drum B and directly below t 1e lid a. As the steam rises, such of it as does not escape through the pipe a, strikes the conical wall of the lid a, condenses and runs down into the trough a. The latter is slightly inclined toward a pipe I), WhlCh passes down to a point near the bottom of the chamber A.

The pipe E is located, and also the perforations therein, so that no water of condensation which may be in said pipe, may be driven into the receptacle or trough D or by impinging against the walls of the chamber caused to fall therein. The steam, risthe glue jelly is instantlylique and as there-is provision'made-for ing away of the glue upon the instant that ing about the collector, passes up through the funnel 'B and through the perforations in the perforated diaphragm or support (1,

then attacking and melting the glue jelly.

After it rises above the diaphragm or support it either passes freely out through: the escape, pipe a or such-of it as does not so pass out is condensed against the inner wall of the lid a and thence runs down into the trough a. It .will be seenthat'by this arrangem'ent all water of condensation is prevented from mixing with the liquid glue.

As a result of my improved process, by which I apply steam to the cold lue jelly, I ed as;- it comes in contact with the' moist steam,

the passit liquefies, the heat as applied by me is only momentary, therefore permitting the cold glue jelly to be converted into liquid form at a temperature thatis not injurious to glue.

and yet of proper temperature for imme-' diate use.

By my process I take a most radical de-.

partu're from old processes both in the method by which I ap ly heat and the nature of heat I apply. employ a moist-heat rough and around the glue' jelly permeates it throughout, while by old methods a dryheat is allowed to gradu- -aliy force itself into the glue jelly. The

yantages over the old method'are therefore not only that it is more convenient and the glue, catching the iverting glue intoa amount of water to form a ell 0 crates more quickl but also t at the fihrous matter in the g no is fully p ed, producing liquid lue at its. full strength, always uniform, ways fresh and without the loss of evaporation, which is ever present by the old method of preparing glue;

Having thus described my invention what A I desire to cover by Letters Patent-is- 1.TThe lprocess as herein described 0 converting g ue intoa'liqfiid form,-which con sists in'fsoa ring the dryglue in a predetermined amount of water subjecting th jelly to the action of steam;

' 2. The r ess as herein described of w verting g ue into liquid form which consists in soakin the dry glue in water tofo'rm a jelly, nd su jecting the jelly to the action of steam, in a closed chamber.

' 3. The rocess as herein described of converting g ue into li uid form, which consists in soaking the ry glue in a" redete'rmined amount of waterto form a jo y, placing the -jelly on a perforated support within a closed chamber, passing-steam throughout the-mass of jelly and'collecting the liquid glue as it runs through the perforations of the support.

to form a elly and 4. The process as herein described of 'con- -.verting glue into liquid form which consists in soaking the glue in a predetermined I amount of water'to form a je the water of condensation of the steam to prevent its mixing with the liquid glue.

- 5. The rocess as herein described of con.-

sis'ts in soaking the 'dry glue in a predetermined amount of water to form a jelly, placing the glue on a perforated support wlthin uid glue 1y, subjecting the elly to the action of steam,.and catching jverting gue into liquid from which'conwater of condensation 6. The process as herein described of con- I liquid form, which consists in soaking the glue in a predetermined j p y passin steam through the body g E. Mansion of the jelly so as to 1 cause it to attack the elly on all sides'and thoroughly permeate the same, andperznit- 

